參數(shù)資料
型號： TS4982IQT
廠商： STMICROELECTRONICS
元件分類： 音頻／視頻放大
英文描述： 2 W, 2 CHANNEL, AUDIO AMPLIFIER, QCC32
封裝： 5 X 5 MM, ROHS COMPLIANT, QFN-32
文件頁數(shù)： 10/31頁
文件大?。?/td> 537K
代理商： TS4982IQT
Application information
TS4982
18/31
Doc ID 14527 Rev 2
The power delivered by the supply voltage is:
Then, the power dissipated by each amplifier is:
and the maximum value is obtained when:
and its value is:
This maximum value only depends on the power supply voltage and load values.
The efficiency,
η, is the ratio between the output power and the power supply:
The maximum theoretical value is reached when:
– VPEAK = VCC for the loudspeaker part, so that:
– VPEAK = VCC /2 for the headphone part, so that:
P
supply
V
CC
I
CC
AVG
=
W
()
P
diss
P
supply
P
out
–
=
W
()
P
diss
22V
CC
π R
L
------------------------
P
out
P
out
–
=
W
()
P
diss
P
out
--------------------- = 0
P
dissmax
2V
cc
2
π2R
L
-------------
=
W
()
η=
P
out
P
supply
--------------------- =
πV
PEAK
4V
CC
-------------------------
η π
4
---
78.5%
=
η π
8
---
39.3%
=
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
TS4984 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:2 x 1W Stereo audio power amplifier with active low standby mode
TS4984EIJT 功能描述:音頻放大器 2x1.2W stereo audio RoHS:否 制造商:STMicroelectronics 產(chǎn)品:General Purpose Audio Amplifiers 輸出類型:Digital 輸出功率: THD + 噪聲: 工作電源電壓:3.3 V 電源電流: 最大功率耗散: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel
TS4984EIKJT 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:1.2W Stereo Audio Power Amplifier with Active Low Standby Mode
TS4984FC 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:1.2W Stereo Audio Power Amplifier with Active Low Standby Mode
TS4984IQT 功能描述:音頻放大器 2x1W stereo audio Pwr amp RoHS:否 制造商:STMicroelectronics 產(chǎn)品:General Purpose Audio Amplifiers 輸出類型:Digital 輸出功率: THD + 噪聲: 工作電源電壓:3.3 V 電源電流: 最大功率耗散: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel
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